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Thermal gas flow meter thermal mass flow meter

Thermal gas flow meter thermal mass flow meter

  • Thermal gas flow meter
    thermal mass flow meter
    thermal mass flow sensor



    Thermal Type Gas Mass Flowmeter utilizes the principle of heat exchange to measure fluid-flow. This meter employs method of constant temperature difference to accurately measure gas mass flow, and it has the advantages of small size, high degree of digitization, easy installation, accurate measurement, etc.

The sensor part consists of two platinum resistance converters of reference level. It utilizes bridge type loop circuit, with one converter measuring fluid temperature, and another maintaining constant temperature difference that is higher than fluid temperature. The measurement can be made under high temperature and high pressure situation.  


   It is a true mass flowmeter that can conveniently and accurately measure gas-flow rate without temperature and pressure compensation, from which users can get gas mass flow or standard volume flow.

Large ratio of measuring range. It can measure gas with velocity of flow from 100Nm/s to 0.5Nm/s, and be used in gas leak hunting.

Good anti-seismic performance and long useful life. The converter doesn’t contain movable part and pressure sense part, so that the measuring accuracy will not be influenced by shaking.

Easy installation and maintenance. If possible, on line installations and maintenance are allowed. (See Safety Notice)

Digital design. The meter utilizes digital circuit measurement to assure accurate result and convenient maintenance.

Factory automation and integration can be achieved by using RS-485 or HART communication.


 Production Name

 High Quality 1.0% Precision SS316L Thermal Gas Mass Flow Meter


 all kinds of gas 



 Flow rate 





 Sensor:Ambient temperature:-10~200℃


  Max temperature:10~350℃


  converter: 10~45℃


 Medium pressure≤4.0Mpa

 Power supply

 Integrated:DC24V or AC220V≤180W



 Feedback speed



 Standard output:4~20mA;Can customized for RS485


 Stainless steel 304 material


 LCD Display


 mass flow;volume flow;total flow;time;temperature;standard flow.

 Protection class


 Converter material

 stainless steel material


  1.Flow range


 The thermal mass flow meter flow range table


 Flow range (Nm3/h)































Installation And Connection
   If installed outside, the meter should be covered by sky shade to avoid exposing to the sun and rain.
 Do not install in sharp pounding situation.
Do not expose to dangerous environment heavily charged with corrosive gas.

Do not share power source with polluting equipment such as converter and welding machine,
and power conditioner can be installed for converter if necessary.
Installations and Connection of All-in-one Meter
       Exterior Appearance Construction Drawing

All-in-one plug type should be inserted in axes of the measured pipeline; therefore,
the length of overcastting staff depends on the caliber of the measured pipeline. If impossible, 
the manufacture will offer calibration coefficient to accomplish accurate measurement.
All-in-one full-tube type employs flanged connection, in accordance with GB/T9119-2000(details see appendix 2).

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Tel: +86021-57635022


Add:Room 402, No. 650, Xinzhuan Rd., Jiuting Town, Songjiang District, Shanghai, China (Mainland)